4. PHILOSOPHY AS DIALOGUE The great dividing line in ancient Greek philosophy--the line which divides philosophers whose ideas seem remote and unfamiliar from those whose ideas seem to be more clearly relevant to contemporary philosophical concerns--comes in the form of a single philosopher who, as far as we know, never wrote a book. That philosopher, Socrates (470-399), gave a completely new interpretation of the philosophical task, the full implications of which took over two thousand years to unfold. We know about Socrates' life and ideas primarily through the writings of one of his close followers, Plato (427-347). Together with Plato's star pupil, Aristotle (384-322), these men form the core of the ancient Greek philosophical tradition. Although there is no need to remember their exact dates, it is important to know the order in which they lived. The easiest way to do this is by remembering the following picture: [Figure 4.1: The Three Great Greek Philosophers] This reminds us that Socrates was rather old when he influenced the young Plato, and that he died before Aristotle was born. Little is known of Socrates' life, and some scholars even question whether such a person ever really lived; but for our purposes we can ignore such debates, since, even if his character was merely an invention of Plato and his contemporaries, that character has come to serve as a "myth" that has guided the development of western philosophy for over two millennia. Socrates was a highly original thinker who practiced what he preached. Although he was a member in good standing of Athens' highest class, he willingly gave up his position sometime in mid-life in order to live a life of "extreme poverty" as a philosopher (Apology, p.23b). During this time he spent his time going around the town engaging people in conversations on various issues. Although he insisted he was not a teacher (Apology, p.33a), there soon gathered around him a group of young men (one of whom was Plato), interested in learning the art of philosophy by following his example. The most significant part of Socrates' career, as recorded by Plato in his Apology, began when his lifelong friend, Chaerephon, asked the Delphic oracle whether there was anyone wiser than Socrates. When Socrates heard that the priestess had answered "no", he felt he had been presented with a riddle to solve, since he believed he did not deserve to be called wise. So, he went around interviewing all those who had the reputation of being wise, such as politicians, poets, and artisans, in hopes of learning from them what wisdom really is. But in each case, their attempt to explain their own "wisdom" was frustrated by Socrates' persistent questioning. Not only were they unable to explain in what their "wisdom" consisted, but Socrates publicly attempted to "prove" to such men that they were not, if fact, wise. Naturally, by questioning all of the traditional myths held by the wealthy and powerful members of his society, he made plenty of enemies! But for Socrates this was not important, since in so doing he was able to discover "that the people with the greatest reputations [for wisdom] were almost entirely deficient, while others who were supposed to be their inferiors were much better qualified in practical intelligence" (Apology, pp.22a). Socrates' final conclusion (Apology, p.23a-b) was that the oracle did indeed contain a riddle, a riddle whose solution is a bitter pill to swallow for those whose role in society requires them to defend the glories of human wisdom: [Some people have described] me as a professor of wisdom.... But the truth of the matter ... is pretty certainly this, that real wisdom is the property of God, and this oracle is his way of telling us that human wisdom has little or no value. It seems to me that he is not referring literally to Socrates, but has merely taken my name as an example, as if he would say to us, The wisest of you men is he who has realized, like Socrates, that in respect of wisdom he is really worthless. Understanding the implications of this insight is of utmost importance if we are to understand the development of philosophy, and especially of metaphysics, in the succeeding two thousand years. For in this statement Socrates clearly states the first criterion for being a good philosopher: we must recognize our ignorance! The price Socrates paid for this insight was his life. For the powerful citizens of Athens took him to court, accusing him "of corrupting the minds of the young, and of believing in deities of his own invention instead of the gods recognized by the state" (Apology, p.24b). During his trial, he defended himself not by pleading for mercy or promising to behave in a more civilized way, but by speaking openly and harshly to his accusers. He explained how the philosophic life is a life which is worth dying for. The philosopher is the person who obeys the imperative of the inscription on the temple at Delphi, "Know thyself". The person who fails to accept this challenge is in a sad situation, for "life without this sort of examination is not worth living" (Apology, p.38a). Indeed, Socrates clearly regarded the life of self- examination as one lived in service to God: although he intentionally cast doubt on the proliferation of gods in the Greek tradition, Socrates himself regarded philosophy as a divinely inspired vocation. Only by living such a life can a person be virtuous, and so help to usher in a just society: For I spend all my time going about trying to persuade you, young and old, to make your first and chief concern not for your bodies nor for your possessions, but for the highest welfare of your souls ... Wealth does not bring goodness [i.e., virtue], but goodness brings wealth and every other blessing, both to the individual and to the state. (Apology, p.30a-b) Such statements, of course, must have seemed like a slap on the face to those he was speaking to, many of whom would have regarded Socrates as a (former) friend, since he had himself been a member of that very court at one time. So it is hardly surprising that when the votes were counted, Socrates was condemned to death (albeit, by the rather narrow margin of 281 to 220). But instead of being outraged by this decision, Socrates accepted it with calm integrity, predicting that the number of those who are willing to question the status quo--i.e., the number of philosophers--will increase, rather than decrease, as a result of his death (Apology, p.39c)! Rather than shrinking back in fear of death, he boldly described how his task as a philosopher had been the task of learning how to die. Thus Plato's Apology ends (p.42a) with Socrates exclaiming: "Now it is time that we were going, I to die and you to live, but which of us has the happier prospect is unknown to anyone but God." Socrates' prediction concerning the growth of philosophy turned out to be accurate. For in the wake of Socrates' death came Plato, in whose writings Socrates' own ideas have been preserved. Unfortunately, many "Postsocratic" philosophers have not been as ready to question those who wield the power in society. This is partly due to the fact that the relationship between philosophers and the "city" has changed radically since Socrates' time. Philosophy is now usually an acceptable part of the status quo. And this change began, rather surprisingly, with Plato himself. Plato presented his philosophical ideas in the form of Dialogues. These books transform Socrates' habit of persistent questioning into a specific philosophical method. On one level, a Dialogue is simply a book that records a conversation between a main speaker--usually Socrates in Plato's Dialogues--and one or more secondary characters. In the course of this conversation the main character acts as a "midwife" for the potential insights waiting to be "born" in the minds of the other characters. (Socrates' mother, incidentally, was a midwife by profession.) In other words, just as a good midwife coaches the pregnant mother so that the mother can give birth to her baby (rather than the midwife having to take the baby out by force), so also the main character asks questions and offers suggestions which, as it were, "coach" the secondary characters in such a way that they discover the desired conclusion without having to be told what it is. But on a deeper level, the significance of this new method lies in its appeal to a higher authority, reason, as the proper arbitrator of all disputes. The dialogue is carried out under the assumption that this higher authority, to which each person has equal access, is capable of imparting a deeper understanding of ultimate reality, or truth. The way the method is supposed to work can therefore be depicted as follows: [Figure 4.2: The Method of Dialogue] Plato used the method of dialogue to construct, on the basis of his understanding of Socrates' ideas (though undoubtedly going beyond them in certain respects), the first thoroughgoing system of metaphysics with a modern ring. His philosophy, which provides the archetype of all "idealist" metaphysical systems, is far too complex to study in any depth in a course like this. However, by looking briefly into his theories of knowledge and of human nature, we should be able to get a good sampling of how his idealism works. The branch of philosophy concerned with answering questions about the nature and origin of human knowledge is called "Epistemology" (from the Greek words epistemos, which means "knowledge", and logos, which here is best taken to mean "the study of"). Metaphysics and epistemology are always intimately related to each other, since a philosopher's understanding of what reality ultimately is will inevitably influence his or her account of how we know what is real, and vice versa. So for the remainder of our study of metaphysics, I will include in my account of each new philosopher a description of his epistemology. Plato's epistemology is based on the assumption that "universals" (or what he sometimes calls "forms" or "ideas") are the only true reality, whereas "particulars" (i.e., "matter" or "things") are only appearances of this reality. In much of our everyday experience we therefore suffer from the illusion that the things and objects around us in the physical world constitute the ultimate reality. The actual situation for mankind is that our ideas reveal to us not merely subjective inner states, but the true nature of reality itself. The philosopher's ultimate task, therefore, is to look beyond the mere appearances of things in order to come to know these ideas. In Book VII of his greatest dialogue, Republic, Plato has Socrates compare the human situation to a group of men who have been prisoners inside a cave since their childhood. Their necks and legs are chained in such a way that they are unable to look towards the opening of the cave. There is a wall behind them, and on the other side of the wall men carry images and shapes of different sorts which stick up over the wall. Behind them all is the light from a great fire (which is later identified as the sun). Hence, the men are able to see only the shadows these objects cast on the back of the cave. Because the men have never known anything other than these shadows, they mistake the shadows for the real beings. The analogy, at least in this simplified form, is quite straightforward. The cave represents the world we live in, and the men in chains represent those who have not yet learned to philosophize. The shadows are the material objects ("appearances") we normally treat as real. And the objects casting the shadows are the true "forms" of these appearances, whose nature can be revealed to us through philosophical reflection. The philosopher's task, therefore, is to become aware of these true forms by breaking the chains which bind us to the illusory reality of the material world; this is done by reflecting upon our ideas, and learning to treat them as the ultimate reality. This is Plato's version of the recognition of ignorance: our ignorance remains only as long as we continue to make the mistake of treating the material world as ultimately real. For this happens whenever we turn our backs on the sun, which represents the highest of all ideas in Plato's system, the idea of "the good". Goodness is the reality from which the light of reason and truth shines forth, thus enabling us to see all the other eternal ideas. [Figure 4.3: Plato's Cave] Plato constructed a hierarchical system of ideas, ranging from those which are more closely connected to the material world (e.g., ideas relating to human desires) to those which can take us virtually all the way out of the cave. Of the latter, truth and beauty join goodness to constitute the three highest ideas. Although we sometimes find approximations to them in the material world, these ideas can never in themselves be perfectly manifested in the world of appearances. We can never point to something in the world and say "there it is; that is the thing we call truth". This is because truth is an eternally existing form, which never changes or passes away. Plato advises young philosophers to begin by coming to know the lower forms, working their way up to a universal vision of ultimate reality, which is likely to occur only rather late in life. The form of knowledge which serves as the most reliable guide along the way, he argued, is mathematics, and within mathematics, geometry. (Perhaps this is one good reason why the use of diagrams can be helpful in understanding difficult philosophical ideas.) Those who succeed in attaining the goal of a universal vision, Plato believed, are the best qualified to govern the ideal state (the "republic"). The policies Plato thought such "philosopher-kings" should enforce have often been harshly criticized for various reasons. We will look more closely at political philosophy towards the end of the third part of this course. But at this point it will suffice to point out that Plato's theory of the philosopher- king deserves to be seriously considered: for who is more capable of ruling in a just and benevolent way, a person who is hungry for power and authority, or one who has seen the ideas of power and authority as they truly are? In working out his theory of forms Plato, like most great philosophers, regarded the question of the ultimate reality of mankind as one of the most significant aspects of his metaphysical theory. So let's conclude our discussion of Plato's idealism by looking briefly at its implications for human nature. If the material world is an illusion, then the human body is obviously not the defining reality of human nature. On the contrary, the body, according to Plato, is what chains us to the cave, limiting our vision to the shadows of reality. Our true reality lies in the idea, or form, of "humanness", which is best expressed in terms of the idea of a "soul" (psyche). The soul is the eternal reality which is, as it were, imprisoned in a body whenever a person is born into this world. As shown in Figure 4.4, it consists of three main parts, or powers: the "appetite" is the lowest part (corresponding to the body's belly), the "reason" is the highest part (corresponding to the head), and the "spirit" is the intermediate part (corresponding to the heart). Since the soul is eternal, there was never a time, according to Plato, when it did not exist. Before our birth, our soul existed in its eternal form in the realm of ideas, to which it will return after we die. In this realm the soul has easy access to all knowledge, because the eternal forms are not obscured by the darkness and limitations of the cave. The experience of birth causes us to forget what we used to know. Hence, Plato's metaphysics provides the basis for his solution to one of the most difficult questions in epistemology: "How do we come to know that which we do not already know?" The answer offered by Plato's idealism is that, quite simply, all learning on this earth is actually remembering what we knew before we were born. [Figure 4.4: The Three Powers of the Soul] Today I have had time only to skim the surface of the ideas put forward by Plato (and Socrates). We could, in fact, spend the rest of this course examining the intricacies of his system, and even then we would have just begun to understand the depths of his thought. Indeed, Plato himself believed his system of eternal forms was capable of transforming philosophy into a science, a body of well-established knowledge. This has, in fact, been a goal for most philosophers ever since. And yet, how this is to be accomplished has been a matter of continuous debate. Indeed, in our next session we will examine the ideas of a pupil of Plato's who believed a scientific philosophy can be established only by following a radically different path. QUESTIONS FOR FURTHER THOUGHT 1. What is a question? 2. How can I go about knowing myself? 3. Could an "eternal form" change? 4. Why is it so difficult for philosophy to establish itself as a science? RECOMMENDED READINGS 1. Plato, Apology and Republic (especially Book VII), in Edith Hamilton and Huntington Cairns (eds.), The Collected Dialogues of Plato (Princeton: Princeton University Press, 1961), pp.3-26, 747-772. (The page numbers cited in the above lecture refer to the pagination of the Greek text, given in the margins of the translation.) 2. Gregory Vlastos, Socrates: Ironist and moral philosopher (Ithaca, N.Y.: Cornell University Press, 1991). 3. James P. Carse, Finite and Infinite Games: A vision of life as play and possibility (New York: Ballantine Books, 1986), especially Chs. 49-50, pp.76- 78. 4. Allan Bloom, The Closing of the American Mind (New York: Simon and Schuster, 1987), especially "From Socrates' Apology to Heidegger's Rektoratsrede", pp.243-312.